AMD AM4 Socket and PCIe 4.0: The perfect pairing for 3rd Gen AMD Ryzen CPUs Fast Connectivity: 1Gb LAN, USB 3.2 Gen 2 Type-A ports, a front panel USB 3.2 Gen 1 connector, plus HDMI 2.1, D-Sub, and DVI display outputs First PCIe 4.0 CSM motherboard: ASUS Corporate Stable Model with up to 36-month supply, EOL notice, and ECN control ASUS Control Center Express (ACCE) to make IT endpoint management simpler 5X Protection III: all-round protection with LANGuard, DRAM overcurrent protection, overvoltage protection, SafeSlot Core safeguards and stainless-steel back I/O


JD99 
  • Brand: ASUS
  • Shipping:  

Learn More


Model
BrandASUS
ModelPRIME B550M-A/CSM
Supported CPU
CPU Socket Type AM4
CPU TypeBIOS update might require for AMD Zen 3 Ryzen 5000 series CPU. Refer to ASUS website for CPU support list.
Chipsets
Chipset AMD B550
Memory
Number of Memory Slots4×288pin
Memory Standard3rd Gen AMD Ryzen Processors
DDR4 4600(O.C)/ 4400(O.C)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3733(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3333(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory *
3rd Gen AMD Ryzen with Radeon Graphics Processors
DDR4 4800(O.C.)/ 4600(O.C)/ 4466(O.C.)/ 4400(O.C)/ 4266(O.C.)/ 4133(O.C.)/ 4000(O.C.)/ 3866(O.C.)/ 3733(O.C.)/ 3600(O.C.)/ 3466(O.C.)/ 3333(O.C.)/ 3200/ 3000/ 2800/ 2666/ 2400/ 2133 MHz Un-buffered Memory *
* Refer to www.asus.com for the Memory QVL (Qualified Vendors Lists).
Maximum Memory Supported128GB
Channel Supported Dual Channel
Expansion Slots
PCI Express 4.0 x163rd Gen AMD Ryzen Processors
1 x PCIe 4.0 x16 (x16 mode)
3rd Gen AMD Ryzen with Radeon Graphics Processors
1 x PCIe 3.0 x16 (x16 mode)
PCI Express x1AMD B550 Chipset
2 x PCIe 3.0 x1 slots
* Support PCIe bifurcation for RAID on CPU function.
Storage Devices
SATA 6Gb/s 4 x SATA 6Gb/s
M.23rd Gen AMD Ryzen Processors:
1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110 (PCIE 4.0 x4 and SATA modes) storage devices support
3rd Gen AMD Ryzen with Radeon Graphics Processors:
1 x M.2_1 socket 3, with M Key, Type 2242/2260/2280/22110 (PCIE 3.0 x4 and SATA modes) storage devices support
AMD B550 Chipset:
1 x M.2_2 socket 3, with M Key, Type 2242/2260/2280 (PCIE 3.0 x4 and SATA modes) storage devices support
SATA RAID0/1/10
Onboard Video
Onboard Video Chipset Supported only by CPU with integrated graphic:
1 x D-Sub
1 x DVI-D
1 x HDMI 2.1 (4K@60HZ)
Onboard Audio
Audio Chipset Realtek ALC887
Audio Channels 7.1 Channels
* A chassis with an HD audio module in the front panel is required to support 7.1-channel audio output.
Onboard LAN
LAN ChipsetRealtek RTL8111H
Max LAN Speed10/100/1000Mbps
Rear Panel Ports
Back I/O Ports2 x USB 3.2 Gen 2 ports (2 x Type-A)
4 x USB 3.2 Gen 1 ports (4 x Type-A)
1 x D-Sub port
1 x DVI-D port
1 x HDMI port
1 x Realtek RTL8111H 1Gb Ethernet port
3 x Audio jacks
1 x PS/2 Keyboard/Mouse combo port
Internal I/O Connectors
Onboard USB1 x USB 3.2 Gen 1 header supports additional 2 USB 3.2 Gen 1 ports
2 x USB 2.0 headers support additional 4 USB 2.0 ports
Other Connectors1 x CPU Fan connector(s)
1 x CPU OPT Fan connector(s)
2 x Chassis Fan connector(s)
2 x Aura RGB Strip Headers
1 x Addressable Gen 2 header(s)
1 x SPI TPM header
1 x S/PDIF out header(s)
1 x Front panel audio connector(s) (AAFP)
1 x Clear CMOS jumper(s)
1 x System panel connector
1 x COM port header
1 x Speaker connector
Physical Spec
Form FactorMicro ATX
LED LightingRGB
Dimensions (W x L)9.6" x 9.6"
Power Pin1 x 24-pin Main Power connector
1 x 8-pin +12V Power connector
Windows 11 Compatibility
Windows 11Supported
Features
FeaturesSoftware Features:
ASUS Exclusive Software
Armoury Crate
- Aura Creator
- Aura Sync
AI Suite 3
- Performance And Power Saving Utility
TurboV EVO
EPU
Digi+ VRM
Fan Xpert 2+
- EZ update
ASUS CPU-Z
AI Charger
DAEMON Tools
Norton Anti-virus software (Free Trial for 60 days)
WinRAR
UEFI BIOS
ASUS EZ DIY
- ASUS CrashFree BIOS 3
- ASUS EZ Flash 3
- ASUS UEFI BIOS EZ Mode

ASUS Special Features:
ASUS 5X PROTECTION III
- ASUS DIGI+ VRM
- ASUS LANGuard
- ASUS Overvoltage Protection
- ASUS SafeSlot Core
- ASUS Stainless-Steel Back I/O
ASUS Q-Design
- ASUS Q-DIMM
- ASUS Q-Slot
ASUS Thermal Solution
- Aluminum heatsink design
AURA Sync
- Standard RGB headers
- Addressable Gen 2 RGB header
ASUS Lighting Control

BIOS:
256MB Flash ROM, UEFI AMI BIOS

Manageability:
WOL by PXE

Operating System:
Windows 10 64-bit
Packaging
Package ContentsAccessories:
1 x ACC Express Activation Key Card
I/O Shield
2 x SATA 6Gb/s cable(s)
1 x Supporting DVD
User manual
1 x M.2 SSD screw package(s)



Related products